Improvement in machinery for cutting wax into sheets



N'FETERS, FHOTO-LITNDGRAPMER. WASHINGTON, DV C.

- f am sat `vvrLLIArvr FQBARNES, or nookronn, ILLINOIS, ASSIenon TornnSnLr` AND SUSAN n. oLARK, or SAME -rLAcnA f,fil""Lctters PateatrN195,627, dated July 26, 1,870.

.2 i g :turnover/mur MAcHmEnY PoR CUTTING WAx'IN'ro SHEETS.r

'Jl'hle`Schlec`1`ulfe referred to n'these Letters 'Patent and makingpart of the same.

1o alLwhO-m vit maycoiwern.- wBc it known that LfWInnIAM F. BARNES, ofRockford, in the countyof Winnebago and State of Illinoisyhaveinventedcertainnew and useful Improvements in Machinery for CuttingViaxintosheets, of which the followingis a specification. j

`My iuventionrelates to a machine v;for,cn tting wax ,into sheets bymeans of a knife traversing overa table,

and is principally `adapted to the manufacture of artificial owers. Y. YThe object of the. first part'of my invention is to out thewaxintosheets, having a smooth surface, and to avoid. cloggingthe knife;and this I do hy causing the knife to move forward parallel with thetable in cutting the` sheet, and then to rise and move backward over thetable inan elevated position clear` of the uncut wax. j

The object of the next part of my invention is to cut thesuccessivesheets of vuniform thickness, and this I accomplish-bycombining, withthe cutter,.mechanisni automatically operatedgto feed thewax to the cutter. rlhe next part oi" my invention relates to the meansof'raising and lowering the table on which -the wax rests; and this Idoby combining adjusting mechanism with the automatic feed mechanism. A

Thenextpart of my invention relates to the devices for Ivarying the sizeof the sheet to be ont; and this-I4 do by,coxnbining `with a rigidframeremovable frames of different sizes, as hereinafter` set forth. lMy i mprovernent` further consists in constructing the bed-plate ortable n-.wl1icl| the wax rests with a fixed central portion,` surroundedby interlocking.,slid` ing sections, to adjust the' table `to the sizeof the removableframe.; l f

The 4accompanying drawing represents a machine,

' embodying all the-improvements herein claimed.l Some `ofsaidimprovements obviously may be used without others, and adapted tomachines differing in constructionfrom the one herein shown.

Figure `1 representsaiplan or top view of my improved rnachine. A f 1 lFigure V2, ar verticailongitudinal central section through thesame', 'atthe line a: afoffig. l.

Irigure' 3, an elevation of the same, as seen from. thetablc end. j y

Figure 4, a horizontal section through the same, on the line y y, fig.2.

A suitable frame, A,`of wood ormetal, is'rmly secured upona proper-base.An open-box frame, B, is mounted upon this frame, of fwhich, inv fact,-I prefer thatitshould forma part. y `flo vary the size' of the sheets, Iemploy a series of `removable open frames, G, which .fit into thevboxvframes andrest upon ledges,c,`on the inside thereof.- 'lheseremovable frames are prevented from rising by set screws, b, passingthrough the sides lof theboxframe into recesses into the removable'frame. The latter framesarealso made to converge slightly on theirrinnersides from bottom to top, to compress the wax as it rises, and deliverit to the cutter ina smooth compact condition. l

'i'.he table, D is mounted on an adj usting-screw, E, `and maybezsteadied by one or more guides, e, secured to. the under side of thetable, and moving endwise through slots in the frame. The table isconstructed, by preference, with an expan'sible top, consisting of afixed central portion, d, and interlocking sliding sec# tions, d d",which may be adjusted relatively to each other, and to the centralsectionv bymeans of holes and screws, as shown in iig. 1, or by slotsand setscrews, the latter passing up through the table. By thisk meansthe table is adj usted to suitthe size ofthe loose frame.

The screw Eworks -in properbearings in the frame.

A bevel-gear, F,- is provided with a female screw,A through whichthe1-adjusting-screw Empasses. The gearl F Vturns freely on vthe screw,a corresponding pinion, g, on a shaft, G, meshes with the gear F, and isrotated by a crank, g1. `The table D istraised or lowered by turningthis crank. f The wax is cnt or shaved into sheets by means of a knife,h, mounted in a stock, H, hinged -at its front end by pivots h toguide-blocks i, reciprocating in grooves in the frame.

The rear end of the 'stock H is pivoted to a crank, J, rotated by awinclror other proper means.

Owing to the relative arrangement4 of the drivingcrank J and stock tothev table, the knife, on its forward out, moves close to the upper edgeof the open frame above which the wax projects, while,.in movingbackward, the knife is elevated and moves clear ofthe wax, as shown in'fig. 1, where the arrows represent the direction of the movement, andthe dott-ed lines the elevated position of the stock.

An arm, j, on thek crank J is provided with a series of holes atdifferent distances from its center, to vary the stroke of a link-rod,7c, connected with an arm, K, turning freely around-the screw E, (seefig. 4.)

This arm carries' a sprng-pawl, l, which takes into ratchet-teeth on thegear F. As this gear adjusts the table D, the latter is moved a givendistance at every stroke of the knife, and as 'this movement equals thethickness of a sheet the uniformity of the latter is automaticallysecured.

It will be observed thatvthe relationsof the cranks Jj aresuch that thefeed takes place vwhile'the knife is elevated and moving backward. A

The operation vof the machine will be readily understood from` thefollowing description:

The table-D is run down to its lowestl positionv by turning the crankg'; the wax is placed on the table, and the loose frame O put on. rlhecrank J being nowtumed, the knife moves forward, making its cnt. At thesame time the arm K carries the spring-pawl Zbaekward over theratchet-teeth on the gear F, and

the table remains stationary. As the knife raises and moves backward thearm K is also retracted, the pawl turns the gear F, and the table israised .the thickness of the sheet, to-be cut at the next stroke of theknife.

This thickness may be varied by setting the link 7c closer to or furtherfrom the axis of 'the crank J, and thus varying the traverse of the armK and pawl l.

I claim as my invention- 1. Thecombination ofthe open box frame, tocontain the wax, the stock carrying the knife., and pivoted to saidframe, and the driving-crank, which both reciprocates and oscillates theknife, substantially as herein-y .before set forth.

2. The combination of the frame, the knife, the crank -which works theknife, the link-rod, driven by said crank, the arm and pawl vibratedbythe link-rod,

the elevating-gear, the feed-screw and the table, substantially ashereinbefore set forth.

3. The combination of theA table, the feed screw, the gear F, the gearg, for setting the table higher or lower prior to -the commencement ofthe, automatic feed,- and the automatically vibrated arm and pawl,whereby the gear F serves both to adjust the table and to feed the waxto the cutter, substantially as hereinbefore set forth. v

4. The combination of the knife, the automaticallymoving feed-table, thefixed open frame, and the removable frame, substantially as hereinbeforeset forth.

5. The combination of the xed central portion of the table, with theadjustable interlocking sections, constructed as set forth.

In testimony whereof I vhave hereunto subcribed my name.

WILLIAM F. BARNES.

Witnesses:

F. O. WHITE, GEO.` P. BROWN.

